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GAS Reporter Lentivirus
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ISRE Reporter Lentivirus
$595.00
Fluorescent ISRE Reporter Lentivirus (JAK/STAT Pathway): High-quality lentiviral reporter system that provides fluorescent readout in response to transcriptional activation of interferon stimulated response element (ISRE). It can be used to monitor expression of IFNα-induced gene activity or activation of the JAK/STAT pathway. The lentiviral particles are purified by PEG precipitation and sucrose gradient centrifugation, and are ideal for use with difficult-to-transfect cells including primary and/or thawed cells.
Our PhD-level staff is ready to assist you. Email us to discuss your project or obtain help selecting the right product for your research.
Email: info@lipexogen.com
Available Options:
Specifications
Key Advantages:
- High Sensitivity – LipExoGen TF Reporter lentiviral particles are made using a novel vector platform based on the third generation system. The transcription factor’s response elements are arranged as DNA tandem repeats upstream of the minimal TATA promoter-driven reporter, and downstream of an optimized minimal enhancer (pc) of the human CMV promoter. When the signal pathway/TF is activated, the mini enhancer synergizes with TF binding to the response elements (up to 8 repeats in some products, depending on strength of reporter activation) to amplify expression of the fluorescent (GFP/RFP) or luciferase (Luc) reporter, with minimal enhancement of background. As a result, the reporter system provides a highly sensitive readout for signaling pathway or specific transcription factor activation in human and mouse cells.
- Easily Establish Stable Reporter Cell Lines – The reporter lentiviral particles are ultra-purified and concentrated to high-titer by PEG purification and sucrose gradient centrifugation to allow for efficient transduction of difficult-to-transfect cells, including primary and/or freeze-thawed cells. Stable cell lines are easily generated through puromycin or blasticidin selection.
- Discovery Made Easy – Signal pathway or specific transcription factor activity can be detected by fluorescence, making LipExoGen TF Reporter lentiviral particles more practical than traditional luciferase reporters and/or biochemical assays. Pathway/TF activation can be readout directly by fluorescence microscopy in living cell cultures, thus paving the way for unexpected discoveries.
- Readout On Flow – Fluorescent reporter activation can also be readout by flow cytometry, providing more versatility in data acquisition for labs with different instruments.
- Best Value – LipExoGen lentiviral particle products are made using optimized lentiviral vectors developed in-house, which allows us to provide the highest quality products while retaining competitive prices. These high-titer lentiviral particles feature a highly sensitive fluorescent reporter system and have been validated to read out the indicated transcription factor activity.
- Same Cost For Custom Lentivirus – You can easily request any combination of reporter (GFP/RFP/Luc) and selection marker (puromycin/blasticidin) for this product, without additional cost, by contacting us. To view our complete list of vectors, click here.
Product Data:
Figure 1 (thumbnail). HEK293FT cells were transfected with ISRE-TAG-Puro for 24-36 hrs, then stimulated with IFNα or PBS for 12 hrs. GFP reporter activation was then visualized by fluorescence microscopy of the living cells.
Figure 2. A human STING mutant blocks IFNα-mediated activation the ISRE reporter in HEK293FT cells. HEK293FT cells were transfected with ISRE-TAG-Puro in combination with an empty vector (pcDNA) or human STING mutant (STING-Mt-RFP-BSD) cDNA, originating from the inflammatory abscess of a chronic sinusitis patient. After 24 h, the cells were stimulated with 20 ng/mL IFNα for an additional 16 h before fluorescence microscopy. To order the human STING mutant cDNA , please email us. The STING mutant blocked IFNα-induced ISRE activation. STING acts as an important pivot for cytosolic DNA sensation and interferon (IFN) induction. Intensive efforts have been endeavored to clarify the molecular mechanism of its activation, its physiological function, and to explore its potential as a therapeutic target in a wide range of immune-related diseases.
Have questions about this product? Need a custom modification or stable cell line? Email us and we will respond the same day.
Email: info@lipexogen.com
Details:
LTV-0021 | |
JAK/STAT pathway | |
Interferon Stimulated Response Element (ISRE) | |
Monitor IFNα-induced activity and activation of the JAK/STAT pathway by detecting ISRE activation, or use as a screening tool for identification of activators/inhibitors of the JAK/STAT signaling pathway. The fluorescent reporter enables convenient readout using flow cytometry, fluorescence microscopy, etc. Stimulator of Interferon Genes (STING) plays a crucial role in cytosolic DNA sensing and the induction of interferon (IFN). As a result, extensive efforts have been made to elucidate the molecular mechanism of STING activation, its physiological function, and its potential as a therapeutic target for a variety of immune-related diseases. The ISRE reporter can also be used to study STING pathway (Fig.2). | |
Human/mouse |
Vector Diagram
Recommended Controls
Reporter Negative Control Lentivirus – Ready-to-transduce lentiviral particles expressing minimal TATA box-driven reporter. The construct is the same as the TF Reporters except that it lacks the transcriptional response elements which drive signal pathway/TF-specific reporter expression. The reporter negative control lentiviral particles allow to establish a baseline for background reporter activity and determine specificity of any treatments to activate the reporter.
Reporter Positive Control Lentivirus – Ready-to-transduce lentiviral particles with constitutive expression of the reporter. The reporter positive control lentivirus is useful for transduction optimization studies, especially if the cells are very sensitive or difficult-to-transduce.
Renilla Luciferase Internal Control Lentivirus – Ready-to-transduce lentiviral particles expressing minimal TATA box-driven Renilla luciferase (RLuc).
Publications
Custom Orders
If you require a modification to one of our products, such as a change in reporter or other vector component, please contact us. Examples of customization options are shown in the table below. Feel free to request something not in the table.
Additional Custom Service Options
- Send us your cells and we can establish a stable NFAT reporter cell line for you using this product. Learn more.
- ORF cDNA plasmids featured in the product figures are available upon request.
- Ultra-high concentration NFAT reporter virus can be provided upon request in your choice of medium and volume (i.e. for in vivo applications).